The invention relates to a composite vibration energy collector, which comprises a shell and a cover plate, wherein a first permanent
magnet, an upper pyrolytic
graphite plate, a first
induction coil,a first friction layer, a second friction layer, a second permanent
magnet, a third friction layer, a fourth friction layer, a second
induction coil and a lower pyrolytic
graphite plate are arrangedin the shell from top to bottom. One the one hand, the first friction layer and the second friction layer have
relative motion to form a friction charge, and the third friction layer and the fourth friction layer have
relative motion to form a friction charge, and on the other hand, when the second permanent
magnet impacts a piezoelectric plate on the shell, the piezoelectric plate is deformed togenerate piezoelectric charges, and meanwhile, and the change of the surrounding
magnetic field can be caused in a movement process of the second permanent magnet, so that the
magnetic flux in the first
induction coil and the second induction coil changes, and thus induction
electromotive force is generated in the coils; and
mechanical energy can be effectively converted into
electric energy, vibration energy collection can be carried out by adopting a plurality of collection
modes, and the
energy conversion efficiency is greatly improved.